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. 2015 Jun;56(3):297–305. doi: 10.3325/cmj.2015.56.297

Table 2.

Descriptive data and gender differences in internet use and mental health indicators*


Girls
(N = 767)
Boys
(N = 772)


mean standard deviation mean standard deviation t-value
df = 1537 P
Communication/entertainment
74.78
20.34
77.22
20.97
-2.27
0.023
Academic purposes
30.38
16.80
25.57
16.80
5.56
<0.001
Online harassment experience
28.02
24.00
23.07
22.64
4.15
<0.001
Problematic internet use
18.86
15.97
36.83
22.22
-17.88
<0.001
Friendship
74.93
16.57
65.88
18.81
9.84
<0.001
Life satisfaction
69.24
19.48
71.42
18.91
-2.21
0.027
Conscientiousness
61.48
19.22
59.41
19.24
2.09
0.037
Symptoms of depression
42.22
20.11
29.88
18.02
12.60
<0.001
Fear of negative evaluation
41.92
23.55
33.32
21.42
7.44
<0.001
Health complaints
37.63
15.79
27.01
15.70
13.09
<0.001
Index of substances usage
24.26
15.57
27.22
16.73
-3.54
<0.001
Loneliness
22.01
21.60
17.17
18.94
4.63
<0.001
Aggressiveness 12.90 13.25 20.73 18.24 -9.59 <0.001

*For easier comparison, the results on all variables were linearly transformed to a standard scale ranging from 0 to 100.